Skin cancers of the head and neck treated by Mohs micrographic surgery often leave wound defects requiring advance reconstruction. Interpolation flaps, including the pedicled melolabial, paranasal, and retroauricular, are sophisticated and reliable options for large defects in facial areas. The paramedian forehead flap is a classic example of an interpolation flap, and it will be discussed in another chapter. The melolabial flap, also known as the cheek-to-nose interpolation flap, is a two-stage flap classically utilized for defects involving the nasal ala, inferior nasal tip, or columella. One limitation to the use of this flap is the resulting asymmetry of the melolabial folds. The paranasal flap overcomes this pitfall and is an excellent option for small to medium alar defects. Both flaps are generously vascularized by tributaries of the angular artery. The retroauricular flap is useful for full-thickness defects of the ear. Classically, this flap is used for defects on the middle third of the ear. However, it can also be utilized for defects on the inferior aspect of the ear, closer to the earlobe. These interpolation flaps, when utilized skillfully, can provide excellent cosmetic results and offer viable options for repair of defects of the nose and ear.
This is a preview of subscription content, log in to check access.
Asgari MM, Warton EM, Neugebauer R, Chren MM. Predictors of patient satisfaction with Mohs surgery: analysis of preoperative, intraoperative, and postoperative factors in a prospective cohort. Arch Dermatol. 2011;147:1387–94.CrossRefGoogle Scholar
Salgarelli AC, Cangiano A, Sartorelli F, Bellini P, Collini M. The bilobed flap in skin cancer of the face: our experience on 285 cases. J Craniomaxillofac Surg. 2010;38:460–4.CrossRefGoogle Scholar
Asgari MM, Bertenthal D, Sen S, Sahay A, Chren MM. Patient satisfaction after treatment of nonmelanoma skin cancer. Dermatol Surg. 2009;35:1041–9.CrossRefGoogle Scholar
Thomas CL, Lam A, Lam J, Paver R, Storey L, Fernandez-Penas P. Factors affecting choice of repair in Mohs micrographic surgery for non-melanoma skin cancer of the head. Australas J Dermatol. 2017;58(3):189–93.Google Scholar
Ward PD, Collar R. Decision making in nasal reconstruction. Facial Plast Surg. 2013;29:340–5.CrossRefGoogle Scholar
Hollmig ST, Leach BC, Cook J. Single-stage interpolation flaps in facial reconstruction. Dermatol Surg. 2014;40(Suppl 9):S62–70.CrossRefGoogle Scholar